package zjt.collection1;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class demo4 {
    public static void main(String[] args) {
        Set<User> set = new HashSet<>();
        //2.添加user数据并按照内容去重复
        set.add(new User(1,"小红",18));
        set.add(new User(2,"小李飞刀",18));
        set.add(new User(1,"小红",18));
        System.out.println(set);
    }
}

class User {
    private int id;
    private String name;
    private int age;

    public User(int id, String name, int age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }

    public User() {
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
    public static List duplicateList(List list) {
        HashSet set = new HashSet();
        set.addAll(list);
        return new ArrayList(set);
    }
}


